How many triangles are there in this figure ?
Find the next number in the series:
1/2,1,2,5. 10,20,50, 100,?
A bit harder than usual for a quickie. Find the missing numbers in
10,11,12,13,14,15,16,17,20,22,24,?, 100, 121,?
Right, now for a problem that is well within the scope of those of you with micros, or even programmable calculators.
If you divided 2519 by 10, there is a remainder of 9.
If you divide 2519 by 9, there is a remainder of 8.
If you divide 2519 by 8, there is a remainder of 7, and so on.
Can you find two other numbers with the same property?